🔬 Science · Forces & Motion
Electromagnets
Describe the magnetic effect of an electric current (a current-carrying wire produces a magnetic field), and investigate how the strength of an electromagnet depends on current, number of coil turns, and core material
Typical age: 12–13 years
“If your child built an electromagnet using a battery, wire, and iron nail, could they describe two ways to make it pick up more paperclips — and explain why it stops working when the circuit is switched off?”
0 / 3 mastered
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Needs first
- Current, voltage, and what they measureREQUIRED
The magnetic effect of a current requires understanding what an electric current is and how it flows
- Magnetic FieldsREQUIRED
Electromagnetism requires prior understanding of magnetic field lines and field direction — established in the magnetic fields topic